AdminConsole iScala2.2

Hi,
Anyone can help me in the following:
iscala2.2 SR2
Role permissions are not being applied when try to change .But with a
replication of same database (ScaSystemDB) on my laptop , chages are being
applied.
Is there anyway to get it done?.Import/Export Security is showing some
import problem with a message "NT user not found something like that"
BR
Balu